William haslam



(No Model.)

W. HASLAM.

y PURNAGB GRATB. No. 352,318.

P a. t e n t-e d N o E A L e Nv PETERS. PholLilhogmpher, Wnshingon, D. C.

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' witha pinion, f, at vits inner end, which gears which is of rectangular shape, as shown in UNITED STATES PArENr @Errea WILLIAM HASLAM, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO DAVID S. URESWELL, OF SAME PLACE.

FURNAcE-GRATE.

SPECIFICATION forming part of Letters PateiltNo. 352,318, dated November 9, 1886.

Application filed April 27, 1885.

semi No.1t3-519. (No'mudei.)

To all whom it may concern:

Be it known that I, WILLIAM HAsLAM, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Furnace-Grates,'of which the following is a specification.

My invention consists ofi mprovements in the construction of shaking and dumping grates', more especially adapted to furnaces and heaters; and the main object of my invention is to construct a grate that' can be applied in place of a worn-out grate of the ordinary construction without disturbing the furnace and linings.

ln the accompanying drawings, Figure 1 is a sectional elevation of part of a hot-air furnace with my improved grate in position; Fig. 2, a detached perspective View of the grate; Fig. 3, a detached perspective view of the grate-frame, and Figs. 4 and 5 perspective views of the hangers for the frame.

A is the ash-pit of the furnace, and B the combustion-chamber, lined, as usual, with tire brick, which rest on a circular plate, a, the ash-pit being provided with the usuaI door, b.

D is the grate, made in a circular form and having a series of concentric bars, m, connected together by webs n, as shown in Fig. 2. A pivot-pin, d,`projects from the center of the grate and fits into a socket, d', on a frame, E,

Fig. 3. This frame is provided with pivotpins i t', one on each side of the frame, which are adapted to bearings 'i' on upright posts I, Figs. 1 and 4. On the under side of a projection, h, on the front portion of the frame E are formed bearings for a shaft, F, which is squared at its outer end, g, and is provided with a circular rack, e, on the under side of the grate E. The pivot-pins z i are arranged on the frame E forward of the center ot' the grate, as shown by the dotted line, Fig. 3, and also in Fig. 1. The weight of fuel on the rear of the frame thus prevents the tilting of the frame of the grate, which can, however, be easily dumped -by withdrawing the bolt 7c, attached to the plate a, in any suitable manner, and entering a recess, Z, in the frame, and the y, on the plate a, or by the use of a poker, and i the retainingbolt 7c can then be reinserted in the recess Z.

The grate E is rotated or reci proeated by a handle, (shown by dotted lines in Fig. 1,) which ts over the squared end of theshaft F. By turning this handle the grate is rotated through the medium of the pinionfand cir cular rack e. v

On the grate are a number of small projections, j, for breaking up the clinker as the grate is turned.

The grate-frame E may, when ci reu instances permit, be hung from small hangers I', Fig. 5, secured to the under side of the plate a,- but I prefer to use the standard I, which-can be placed on the ash-pit iioor and can be easily made to fit any height of ash-pit.

I claim as my invention- 1. The combination of a rotary grate, D, with a swinging grate frame, E, the grate pivoted tothe frame to turn thereon in a horizontal plane, and the frame pivoted at t' in front of the pivot of the grate, as set forth.

2. The combination of the frame E, of rectangular form, pivoted at its sides in the furnace-casing, and having a socket, d', with a grate having a central pivot-pin, d, adapted to the socket, a shaft, F, in bearings in the `front portion of the frame, and having a pinion, f, gearing with a circular rack on the under side of the grate, substantially as set 

